Made of high-strength 1022A carbon steel with premium black zinc plating, better than regular black phosphate coating. Matte zinc layer resists peeling and rust, suitable for damp indoor environments.
Deep anti-slip cross slot stops screwdriver slipping to avoid breakage. Full countersunk head sinks flush into wood for clean hidden installation.
Sharp tip & clear deep threads fasten wood, plastic, thin metal without pre-drilling. Full M4/M5/M6 metric sizes for cabinets, furniture, trim and drywall repairs.
Dustproof & moisture-proof sturdy plastic box with 130 PCS M4*40mm screws, easy to sort, store and carry. Please confirm size before ordering.
Stable performance under different humidity for all indoor woodworking projects. Email us freely for any product issues, we will reply and solve problems quickly.